Citation: Nishimoto, S.; Ishigaki, T.; Harjo, S.; Matsuda, M.; Kamiyama, T.; Hoshikawa, A.; Miyake, M. (2006). Structural change in a series of protonated layered perovskite compounds, H Ln Ti O4 (Ln = La, Nd and Y). Journal of Solid State Chemistry, 179, pp. 1892-1897.